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modtrezorui: draw bars under letters

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Pavol Rusnak 2017-12-16 17:22:03 +01:00
parent 11a3ff055c
commit 6aae87437f
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 27 additions and 17 deletions
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44
embed/extmod/modtrezorui/display.c
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@ -423,33 +423,43 @@ void display_text(int x, int y, const char *text, int textlen, uint8_t font, uin
if (textlen < 0) {
textlen = strlen(text);
}
int px = x + DISPLAY_OFFSET[0];
y += DISPLAY_OFFSET[1];
// render glyphs
// render background bars
int px = x + DISPLAY_OFFSET[0];
for (int i = 0; i < textlen; i++) {
const uint8_t *g = get_glyph(font, (uint8_t)text[i]);
if (!g) continue;
// g[0], g[1] = width, height
// g[2] = advance
// g[3], g[4] = bearingX, bearingY
if (g[0] && g[1]) {
int sx = px + (int8_t)(g[3]);
int sy = y - (int8_t)(g[4]);
int w = g[0];
int h = g[1];
const int8_t adv = g[2]; // advance
display_bar(px - 2, y - 18, adv + 3, 23, bgcolor);
px += adv;
}
// render glyphs
px = x + DISPLAY_OFFSET[0];
for (int i = 0; i < textlen; i++) {
const uint8_t *g = get_glyph(font, (uint8_t)text[i]);
if (!g) continue;
const int8_t w = g[0]; // width
const int8_t h = g[1]; // height
const int8_t adv = g[2]; // advance
const int8_t bearX = g[3]; // bearingX
const int8_t bearY = g[4]; // bearingY
if (w && h) {
const int sx = px + bearX;
const int sy = y - bearY;
int x0, y0, x1, y1;
clamp_coords(sx, sy, w, h, &x0, &y0, &x1, &y1);
display_set_window(x0, y0, x1, y1);
for (int j = y0; j <= y1; j++) {
for (int i = x0; i <= x1; i++) {
int rx = i - sx;
int ry = j - sy;
int a = rx + ry * w;
const int rx = i - sx;
const int ry = j - sy;
const int a = rx + ry * w;
#if FONT_BPP == 2
uint8_t c = ((g[5 + a / 4] >> (6 - (a % 4) * 2)) & 0x03) * 5;
const uint8_t c = ((g[5 + a / 4] >> (6 - (a % 4) * 2)) & 0x03) * 5;
#elif FONT_BPP == 4
uint8_t c = (g[5 + a / 2] >> (4 - (a % 2) * 4)) & 0x0F;
const uint8_t c = (g[5 + a / 2] >> (4 - (a % 2) * 4)) & 0x0F;
#else
#error Unsupported FONT_BPP value
#endif
@ -458,7 +468,7 @@ void display_text(int x, int y, const char *text, int textlen, uint8_t font, uin
}
}
}
px += g[2];
px += adv;
}
}